Laptop Hinge Light-Slit Structure for Uniform Thin Display Lighting
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Solution Overview
Problem
Existing laptop designs face challenges in achieving thin and light form factors while maintaining light uniformity, as increasing the number of light sources or distance between light sources and light-transmitting panels either raises manufacturing costs or results in a thick display.
Innovation Solution
The electronic device incorporates a driving module with gears and a light source positioned in the first body, which creates a light emitting slit between the second casing and pivoting part, allowing light to be directed to a reflecting part, thereby increasing the distance of light transmission and improving uniformity without adding thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the number of light sources is increased to improve light uniformity, then light uniformity is improved, but manufacturing cost increases
Solution Approach 1:
A light guiding member is introduced as an intermediary component between the light source and the light transmitting panel. This light guiding member diffuses and redirects light to achieve uniform illumination across the panel, eliminating the need to increase the number of light sources while maintaining manufacturing cost efficiency
2Illumination intensity
If the distance between light sources and light-transmitting panel is increased to improve light uniformity, then light uniformity is improved, but display thickness increases
Solution Approach 1:
The light guiding member extends in the lateral dimension parallel to the light transmitting panel, allowing light diffusion and uniform distribution to occur along its length rather than requiring increased vertical distance. This enables uniform illumination to be achieved without increasing display thickness
3Illumination intensity
If a light guiding member is added to improve light uniformity, then light uniformity is improved, but device complexity increases
Solution Approach 1:
The light guiding member is designed as a thin, planar component with light diffusing features integrated into its structure. This flexible, film-like design allows it to be easily integrated into the existing display stack without significantly increasing structural complexity or requiring complex assembly procedures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances light uniformity while maintaining a thin and light weight profile, reducing production costs by allowing a smaller number of light sources to achieve an excellent lighting effect, and enables patterned or surface-treated light reflecting parts for richer visual experiences.
Implementation Method 1
light emitted from the light source is directed to the light reflecting part through the light emitting slit
Data Source
AI summary
An electronic device including a first body, a second body, a pivoting shaft, a driving module, and a light source is provided. The first body includes a first casing and a second casing movably disposed on the first casing. The second body has a pivoting part and a light reflecting part located at the pivoting part. The pivoting shaft is connected to the pivoting part. The second body is pivoted to the first body through the pivoting shaft. The pivoting shaft, the driving module, and the light source are disposed in the first body. The driving module is connected to the pivoting shaft and contacts the second casing. When the second body rotates relative to the first body, the pivoting shaft drives the driving module to push the second casing to lift to form a light emitting slit between the second casing and the pivoting part.